<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>电子蜘蛛</title>
  <script src="spider.js"></script>
  <style>
    body {
      margin: 0px;
      padding: 0px;
      position: fixed;
      background: rgb(0, 0, 0);
    }
  </style>
</head>
<body>
<canvas id="canvas"></canvas>
</body>
</html>